Back Pitch for DC Machine Calculator

Calculate Back Pitch for DC Machine





Formula

The formula to calculate the Back Pitch for DC Machine is:

\[ Y_b = \frac{(2 \cdot n_{slot})}{P} + 1 \]

Definition

Back Pitch refers to the distance between two consecutive sides of a coil measured along the surface of the armature. Number of Slots depends on various factors such as the size of the generator, the type of winding used, the desired output voltage, and the power rating. Number of Poles refers to the total count of poles in an electrical machine for the flux generation.

Example Calculation

Let's assume the following values:

Using the formula:

\[ Y_b = \frac{(2 \cdot 96)}{9} + 1 = 22.3333333333333 \]

Conversion Chart

Number of Slots (nslot) Number of Poles (P) Back Pitch (Yb)
90 9 21.000000000000000
91 9 21.222222222222221
92 9 21.444444444444443
93 9 21.666666666666668
94 9 21.888888888888889
95 9 22.111111111111111
96 9 22.333333333333332
97 9 22.555555555555557
98 9 22.777777777777779
99 9 23.000000000000000
100 9 23.222222222222221